Macro sqlx_implementations_for_wrapper

macro_rules! sqlx_implementations_for_wrapper {
    ($WRAPPED:ty, $DBTYPE:expr, $NAME:ty, $DOMAIN:ty) => { ... };
}

Macro to handle numeric types that are non-negative but are stored by Db-Sync using signed SQL types.

This macro generates an unsigned numeric domain type and sqlx trait implementation for decoding it from signed data coming from Db-Sync database. It expects that values will always have 0 as the most significant bit.

For example because TxIndex is in range of [0, 2^15-1], it will be u16 in domain, but it requires encoding and decoding as i16.

See txindex, word31 and word63 types in Db-Sync schema definition.